I used to live around the corner from the Formaggio when I was in the South End. This was one of my favorite places to wander into for a last minute dinner and also the place where I found the epic Salsa Divino from Desert Pepper. If I didn't already have somewhere to be that day, I would most certainly be attending this class.
For more details on the event and to sign up, check out the event's website. Class admission is listed as $45/ person and comes with lessons as well as great recipes and plenty of tasting.